This set of Sonnax high clutch hub shims 28304-30 allows endplay of the high clutch hub to be reduced and controlled in GM Powerglide units. Limiting hub endplay is beneficial when optimizing the high clutch pack stackup.
The Sonnax shim fits between the small wear plate and drum to lift the hub out of the drum. This reduces end play between the hub and sun gear flange and also maximizes clutch tooth engagement with the hub splines, preventing the rear clutch friction disc from dropping off the clutch hub.
The shim also can be used when a clutch drum has been resurfaced at the small wear plate contact area. The package includes three .032" thick shims that can be combined for additional stack height.

When running a friction on a flange plate, shims help properly position the clutch hub
Allows hub endplay adjustment with a mix of various high clutch components

More From This Category

Motive Gear Differential Bearing Kit, Koyo, For OLDSMOBILE 442 1964–1971, Kit

Motive Gear Differential Bearing Kit, Koyo, For OLDSMOBILE 442 1964–1971, Kit

$149.22

Sonnax Aluminum Tubing, Drive Shaft Tube, 3.50" x 72" long Each

Sonnax Aluminum Tubing, Drive Shaft Tube, 3.50" x 72" long Each

$419.22

Wilwood Bearing Cup, Starlite Hub, Inner, Race

Wilwood Bearing Cup, Starlite Hub, Inner, Race

$20.04

Motive Gear Gear Install Kit, For Chrysler 7.25, Kit

Motive Gear Gear Install Kit, For Chrysler 7.25, Kit

$15.63

MANLEY Connecting Rod Pin Bushing, Bronze, .904 in. OD, .820 in. ID, .845 in. Length, Each

MANLEY Connecting Rod Pin Bushing, Bronze, .904 in. OD, .820 in. ID, .845 in. Length, Each

$22.80

TCI 700R4/4L60E Hd Drum 87-97

TCI 700R4/4L60E Hd Drum 87-97

$827.69